<template>
	<view class="cart-container" v-if="cart.length !== 0">
  <my-address></my-address>
  
  <view class="cart-title">
  	<!-- 左侧的图标 -->
  	<uni-icons type="shop" size="18"></uni-icons>
  	<!-- 右侧文本 -->
  	<text class="cart-title-text">购物车</text>
  </view>
  
  
  <uni-swipe-action>
  	<block v-for="(goods, i) in cart" :key="i">
  		<uni-swipe-action-item :options="options" @click="swipeActionClickHandler(goods)">
  			<my-goods :goods="goods" :show-radio="true" :show-num="true" @radio-change="radioChangeHandler"
  				@num-change="numberChangeHandler"></my-goods>
  		</uni-swipe-action-item>
  	</block>
  </uni-swipe-action>
  
  <!-- 结算区域 -->
  <my-settle></my-settle>
  
	</view>
<view class="empty-cart" v-else>
		<image src="/static/cart_empty@2x.png" class="empty-img"></image>
		<text class="tip-text">空空如也~</text>
	</view>  
  
</template>

<script>
	import badgeMix from '@/mixins/tabbar-badge.js'
  import {
		mapState,
		mapMutations
	} from 'vuex'
  
  
	export default {
		mixins: [badgeMix],
    computed: {
    	// 将 m_cart 模块中的 cart 数组映射到当前页面中使用
    	...mapState('m_cart', ['cart']),
    },
		data() {
			return {
          options: [{
					text: '删除', // 显示的文本内容
					style: {
						backgroundColor: '#C00000' // 按钮的背景颜色
					}
				}]
			};
		},
    methods: {
    	...mapMutations('m_cart', ['updateGoodsState', 'updateGoodsCount', 'removeGoodsById']),
    	radioChangeHandler(e) {
    		this.updateGoodsState(e)
    	},
    	numberChangeHandler(e) {
    		this.updateGoodsCount(e)
    	},
    	swipeActionClickHandler(goods) {
    		this.removeGoodsById(goods.goods_id)
      }
    }
	}
</script>

<style lang="scss">
 .cart-container {
 	padding-bottom: 50px;
 }
 
 .cart-title {
 	height: 40px;
 	display: flex;
 	align-items: center;
 	padding-left: 5px;
 	border-bottom: 1px solid #efefef;
 
 	.cart-title-text {
 		margin-left: 10px;
 		font-size: 14px;
 	}
 }
 
 .empty-cart {
 	display: flex;
 	flex-direction: column;
 	align-items: center;
 	padding-top: 150px;
 
 	.empty-img {
 		width: 90px;
 		height: 90px;
 	}
 
 	.tip-text {
 		font-size: 12px;
 		color: gray;
 		margin-top: 15px;
 	}
 } 

</style>